Buyan-M Missile Corvette Hit By Missile or Drone in Lake Onega General Leave a Comment on Buyan-M Missile Corvette Hit By Missile or Drone in Lake Onega On the morning of October 4, Ukrainian Special Operations Forces successfully attacked the Project 21631 Buyan-M Grad small missile ship in the waters of Lake Onega in the Republic of Karelia, Russia. (Visited 5 times, 1 visits today)